Message type: E = Error
Message class:  CNV - Conversion: Messages for Conversion Services (CNCC) 
Message number: 105
Message text: Delimitation is not carried out by organizational unit.
When executing a conversion, you can specify that you want the
conversion to take place only in certain organizational units (such as
company codes or controlling areas). If you do so, the system checks
during the conversion to which organizational unit each record of a
table belongs. Depending on whether its organizational unit participates
in the conversion or not, each record is either converted or retained
intact.
For the shipment packages, it is possible to specify if this function is
active for the package, if it can be activated, if it must not be
activated or if the decision on whether to activate the function or not
is taken during the conversion depending on the package settings.
If activating the function is allowed for a package, the system asks you
during the package creation process if you want to activate the
function, and if yes, by which organizational unit (company code or
controlling area) delimitation should take place.
For the given conversion package, the function for delimitation by
organizational units is not activated.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
The SAP error message CNV105 ("Delimitation is not carried out by organizational unit") typically occurs during the data migration process, particularly when using the SAP Landscape Transformation (SLT) or other data migration tools. This error indicates that the system is unable to perform the delimitation process for the specified organizational unit, which is essential for ensuring that data is correctly mapped and transferred.
Causes:
Missing Configuration: The organizational unit may not be properly configured in the system, leading to issues during the delimitation process.
Authorization Issues: The user executing the migration may not have the necessary authorizations to perform delimitation for the specified organizational unit.
Data Inconsistencies: There may be inconsistencies or errors in the data related to the organizational unit that prevent the delimitation from being executed.
Technical Issues: There could be underlying technical issues, such as system performance problems or bugs in the migration tool.
Solutions:
Check Configuration: Ensure that the organizational unit is correctly Get instant SAP help. Sign up for our Free Essentials Plan.
Get instant SAP help. Sign up for our Free Essentials Plan. 
CNV104 Contradictory entries for derivation type for the different packages.
What causes this issue?  When executing a conversion, you can specify that you want the conversion to take place only in certain organizational units ...
CNV103 Settings for org. unit delimitation are incompatible.
What causes this issue?  When executing a conversion, you can specify that you want the conversion to take place only in certain organizational units ...
CNV106 Delimitation is carried out by organizational unit &1.
What causes this issue?  When executing a conversion, you can specify that you want the conversion to take place only in certain organizational units ...
CNV107 Delimitation by organizational unit arises by making additional settings.
What causes this issue?  When executing a conversion, you can specify that you want the conversion to take place only in certain organizational units ...
Click on this link to search all SAP messages.